$large-width: 1400px;
$medium-width: 1100px;
$small-width: 800px;

$large-left-width: 1100px;
$medium-left-width: 900px;
$small-left-width: 600px;

%coverBg {
    background: #f5f5f5;
}

@media screen and (max-width: $large-width) {
    .push-wrap, .pull-wrap {
        .left {
            width: $medium-left-width;
        }
        .right {
            .list {
                .item {}
            }
        }
    }
}